PETSc <url>http://www.mcs.anl.gov/petsc/petsc.html <title_line>portable, extensible toolkit for scientific computation <version>2.0 <abstract> PETSc is a large suite of data structures and routines for both uni- and parallel-processor scientific computing. Intended especially for the numerical solution of large-scale problems modeled by partial differential equations, PETSc provides a rich environment for modeling scientific applications as well as for rapid algorithm design and prototyping. <keywords>numerical library; architecture independence <category>numerical-PDEs;numerical-linalg <environment><url>ftp://info.mcs.anl.gov/pub/petsc/Machines</url> <contact>William Gropp / gropp@mcs.anl.gov </urc>